Servicing The Spark Plug - Toro GrandStand 79534 Operator's Manual

A
C
E
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Figure 46
Note: Ensure that the oil-filter gasket touches the
engine and then an extra 3/4 turn is completed.
4. Fill the crankcase with the proper type of new oil; refer
to Changing the Engine Oil (page

Servicing the Spark Plug

Service Interval: Every 100 hours
Make sure that the air gap between the center and side
electrodes is correct before installing the spark plug.
Use a spark plug wrench for removing and installing the spark
plug(s) and a gapping tool/feeler gauge to check and adjust
the air gap. Install a new spark plug(s) if necessary.
Type for all Engines: NGK
Air Gap: 0.75 mm (0.03 inch)
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B
D
F
3/4
34).
®
BPR4ES or equivalent
Removing the Spark Plug
1. Disengage the PTO, move the motion-control levers to
the N -
EUTRAL LOCK
2. Shut off the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Remove the spark plug as shown in
A
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Checking the Spark Plug
Important: Do not clean the spark plug(s). Always
replace the spark plug(s) when it has a black coating,
worn electrodes, an oily film, or cracks.
If you see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator usually
means the air cleaner is dirty.
Set the gap to 0.75 mm (0.03 inch).
A
35
position, and set the parking brake.
Figure 47.
B
Figure 47
B
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Figure 48